Redefining Reliability

As the global leader in hydrogen generation, Proton OnSite is the world's largest manufacturer of on-site hydrogen generators with over 2600 units installed worldwide. We have developed and applied PEM electrolysis technology for over 20 years. Our hydrogen, nitrogen and zero air generators are versatile solutions that streamline operation for a broad variety of industries worldwide.

To meet the diverse requirements of our customers, our on-site gas generators are safe, reliable and cost effective. We are proud to manufacture dependable solutions that generate the gas you need, when and where you need it.